Despite retiring in September, Andy Roddick rose two ranking spots this week in the ATP

Want to know when your rankings system needs to be revamped? When a guy that hasn't played a competitive match in six months moves up in the rankings despite, ya know, not playing the game he's improving his number in.

How in the world did this happen? Well, it's complicated in the sense that the ATP rankings are insane and make no sense. Basically the rankings are a review of the past 52 weeks of play, so Roddick, who won twice before Wimbledon last season, is riding that success in the rankings despite, ya know, not playing anymore, and two guys ahead of him (Viktor Troicki and Nikolay Davydenko) dropped down due to poor play.

It's so ridiculous that even Roddick retweeted the line from Tennis Stats, and I'm sure got a good chuckle out of it as he continued to not play competitive tennis, and with the drought that is mens' American tennis, maybe Roddick is still our best hope to break into the top-10 if people continue to fall early in tournaments.

Keep hope alive, Andy!

Update: Well, this won't last long. The USA Today is reporting that Roddick has filed his retirement papers, meaning he won't be around in the rankings starting next week.

Just heard that Roddick has filed his retirement papers ... He will be out of the rankings next week. :(